Crystal structure of Bruton agammabulinemia tyrosine kinase complexed with BMS-986142 aka (2s)-6-fluoro-5-[3-(8-fluoro-1-methyl-2,4-dioxo-1,2,3,4-tetrahydroquinazolin-3-yl)-2-methylphenyl]-2-(2-hydroxypropan-2-yl)-2,3,4,9-tetrahydro-1h-carbazole-8-carboxamide

Experimental Data Snapshot

  • Resolution: 1.50 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.204 

wwPDB Validation   3D Report Full Report

This is version 1.0 of the entry. See complete history


Discovery of 6-Fluoro-5-(R)-(3-(S)-(8-fluoro-1-methyl-2,4-dioxo-1,2-dihydroquinazolin-3(4H)-yl)-2-methylphenyl)-2-(S)-(2-hydroxypropan-2-yl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide (BMS-986142): A Reversible Inhibitor of Bruton's Tyrosine Kinase (BTK) Conformationally Constrained by Two Locked Atropisomers.

Watterson, S.H.De Lucca, G.V.Shi, Q.Langevine, C.M.Liu, Q.Batt, D.G.Beaudoin Bertrand, M.Gong, H.Dai, J.Yip, S.Li, P.Sun, D.Wu, D.R.Wang, C.Zhang, Y.Traeger, S.C.Pattoli, M.A.Skala, S.Cheng, L.Obermeier, M.T.Vickery, R.Discenza, L.N.D'Arienzo, C.J.Zhang, Y.Heimrich, E.Gillooly, K.M.Taylor, T.L.Pulicicchio, C.McIntyre, K.W.Galella, M.A.Tebben, A.J.Muckelbauer, J.K.Chang, C.Rampulla, R.Mathur, A.Salter-Cid, L.Barrish, J.C.Carter, P.H.Fura, A.Burke, J.R.Tino, J.A.

(2016) J Med Chem 59: 9173-9200

  • DOI: https://doi.org/10.1021/acs.jmedchem.6b01088
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Bruton's tyrosine kinase (BTK), a nonreceptor tyrosine kinase, is a member of the Tec family of kinases. BTK plays an essential role in B cell receptor (BCR)-mediated signaling as well as Fcγ receptor signaling in monocytes and Fcε receptor signaling in mast cells and basophils, all of which have been implicated in the pathophysiology of autoimmune disease. As a result, inhibition of BTK is anticipated to provide an effective strategy for the clinical treatment of autoimmune diseases such as lupus and rheumatoid arthritis. This article details the structure-activity relationships (SAR) leading to a novel series of highly potent and selective carbazole and tetrahydrocarbazole based, reversible inhibitors of BTK. Of particular interest is that two atropisomeric centers were rotationally locked to provide a single, stable atropisomer, resulting in enhanced potency and selectivity as well as a reduction in safety liabilities. With significantly enhanced potency and selectivity, excellent in vivo properties and efficacy, and a very desirable tolerability and safety profile, 14f (BMS-986142) was advanced into clinical studies.

  • Organizational Affiliation

    Bristol-Myers Squibb Research and Development , P.O. Box 4000, Princeton, New Jersey 08543, United States.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tyrosine-protein kinase BTK267Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q06187 (Homo sapiens)
Explore Q06187 
Go to UniProtKB:  Q06187
PHAROS:  Q06187
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ06187
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 73T

Download Ideal Coordinates CCD File 
B [auth A]6-Fluoro-5-(R)-(3-(S)-(8-fluoro-1-methyl-2,4-dioxo-1,2-dihydroquinazolin-3(4H)-yl)-2-methylphenyl)-2-(S)-(2-hydroxypropan-2-yl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide
C32 H30 F2 N4 O4
Binding Affinity Annotations 
IDSourceBinding Affinity
73T BindingDB:  5T18 IC50: min: 0.41, max: 0.84 (nM) from 3 assay(s)
Binding MOAD:  5T18 IC50: 0.5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.50 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.204 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.604α = 90
b = 69.759β = 90
c = 88.955γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-08
    Type: Initial release